202000111220 has 48 divisors (see below), whose sum is σ = 438378974208. Its totient is φ = 78105223680.

The previous prime is 202000111217. The next prime is 202000111297. The reversal of 202000111220 is 22111000202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366284 + ... + 733596.

It is an arithmetic number, because the mean of its divisors is an integer number (9132895296).

Almost surely, 2^202000111220 is an apocalyptic number.

202000111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202000111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219189487104).

202000111220 is an abundant number, since it is smaller than the sum of its proper divisors (236378862988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202000111220 is a wasteful number, since it uses less digits than its factorization.

202000111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368240 (or 368238 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202000111220 its reverse (22111000202), we get a palindrome (224111111422).

The spelling of 202000111220 in words is "two hundred two billion, one hundred eleven thousand, two hundred twenty".